Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger

Get more life out of your DEWALT 18V tools with the DEWALT DCA2203C Adapter Kit, designed to let tradespeople and DIYers run modern 20V MAX* lithium-ion batteries on most legacy 18V DEWALT tools. Whether you’re in the middle of a retrofit, maintenance job, or daily operation, this adapter provides a reliable power upgrade without replacing your entire tool lineup. This kit comes complete with (2) DCB203 2.0Ah 20V MAX XR batteries, a 12V/20V MAX charger, and the DCA1820 adapter — offering immediate compatibility and quick recharge times. Built for convenience and compatibility, it brings new life to older tools while keeping them running on DEWALT’s proven 20V MAX battery platform.

Dewalt 20V MAX to 18V Battery Adapter Kit At a Glance

• 20V to 18V Tool Compatibility: Adapts DEWALT 20V MAX* slide pack batteries for use in most 18V NiCd & NiMH DEWALT tools.
• Complete Power Kit: Includes two 2.0Ah 20V MAX XR batteries and a 12V/20V MAX charger for immediate use.
• Battery Upgrade for Older Tools: Lets you modernize power output while maintaining use of your trusted 18V tools.
• LED Fuel Gauge on Batteries: Provides immediate visibility to charge levels, minimizing job interruptions.
• Durable Design: Built for the jobsite with secure battery locking and rugged adapter housing.

Markets

• Construction: A cost-effective solution for crews who still use 18V tools but have shifted to 20V MAX batteries.
• Maintenance & Facilities: Ideal for facilities that stock older 18V tools but want to unify battery platforms.
• Electrical: Allows electricians to keep using legacy drills, drivers, and lighting with newer battery tech.
• Plumbing & Mechanical: Useful for MEP professionals who rely on 18V hammer drills or saws but prefer 20V MAX battery runtime.
• Woodworking: Perfect for woodworkers with dependable 18V saws and sanders who want modern power cells.
• DIY/Home Renovation: A practical option for those who’ve built up a collection of 18V DEWALT tools but want battery compatibility across generations.

Tradespeople who rely on their DEWALT 18V tools can now boost performance and battery availability using their 20V MAX platform. With this kit, there’s no need to retire your dependable 18V drills, saws, or grinders—just plug in the adapter and keep working. Fleet managers and contractors benefit from the cost savings and reduced downtime, while individual users gain flexibility on the jobsite without losing investment in their older tools.

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Features

• Allows use of 20V MAX* Batteries in most DEWALT 18V Tools – See questions and answers section for full compatbility information
• Adapter requires the use of 20V MAX* Chargers
• Adapter will not fit in DEWALT 18V Chargers
• Do not use with Premium Batteries (DCB200, DCB204, DCB204BT, DCB205) in 18V Compact drills DC970, DC759 (use DCB201, DCB203, DCB203BT)
• Adapter will not work with 20V/60V FLEXVOLT Batteries

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Applications

• Use on almost all DEWALT 18V tools.
• Drilling
• Fastening
• Hammering
• Cutting
• Grinding

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Includes

• (1) DCA1820 Adapter – Converts 20V MAX to 18V Tool Compatibility
• (2) DCB203 20V MAX XR 2.0Ah Batteries – Compact, lightweight lithium-ion power
• (1) DCB112 12V/20V MAX Charger – Charges both 12V and 20V MAX battery platforms

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Specifications

• Battery Voltage: 20V MAX
• Battery Amp Hour: 2.0Ah per battery
• Charge Time: ~90 minutes (per battery)
• Adapter Compatibility: DEWALT 20V MAX batteries (DCB201, DCB203, DCB203BT only)
• Incompatible With: DEWALT radios, nailers, FLEXVOLT batteries, and 18V chargers
• Dimensions:
  • Assembled Depth: 12.5 in
  • Assembled Height: 13.0 in
  • Assembled Width: 4.0 in
  • Weight: 3.41 lbs
• Charger Model: DCB112 (12V/20V MAX)

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Compatibility

• Compatible with most DEWALT 18V NiCd tools.
• ✖ Not compatible with DEWALT 18V chargers.
• ✖ Do not use premium batteries (DCB200, DCB204, DCB204BT, DCB205) in compact 18V drills (DC970, DC759).
• ✖ Not compatible with DEWALT radios, nailers, DC020/DC022 lights, or DCS370 bandsaw.
• ⚠ Compatible with DC500 vacuum, DW074/DW079 lasers, but battery door may not fully close.
• ✖ Not compatible with 20V/60V FLEXVOLT batteries

Dewalt DCA2203C 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger Warranty

• Dewalt’s Guaranteed Tough 3 Year Limited Warranty (3/1/90)

Why Customers Choose the Dewalt 20V MAX to 18V Battery Adapter Kit W/ 2 DCB203 (2.0AH) & Charger

The DEWALT DCA2203C 20V MAX to 18V Battery Adapter Kit is a practical solution for tradespeople looking to upgrade to modern lithium-ion power without retiring their legacy tools. Compatible with most DEWALT 18V tools, this adapter kit bridges the gap between platforms by allowing users to run 20V MAX XR batteries—such as the DCB203 2.0Ah packs—on older 18V equipment. Whether you’re looking to extend the life of a dependable 18V drill or want a smarter way to standardize your fleet, this DEWALT adapter kit offers a streamlined path forward. The included DCB112 charger ensures fast and reliable charging across both 12V and 20V MAX platforms. Ideal for pros managing mixed-tool inventories, the DCA1820 adapter helps you avoid the hassle of juggling outdated chargers or replacing a full lineup. For electricians, contractors, or facility teams with long-trusted 18V DEWALT tools, this adapter kit offers a reliable way to upgrade to 20V lithium-ion batteries—without sacrificing performance or compatibility.